19995065

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{1889}}^1$

素因数の和:1996

約数の個数: 16

約数和(自身を含む): 25174800

約数和(自身を除く): 5179735

約数列:

[1, 5, 29, 73, 145, 365, 1889, 2117, 9445, 10585, 54781, 137897, 273905, 689485, 3999013, 19995065]

約数ペア:

[(1, 19995065), (5, 3999013), (29, 689485), (73, 273905), (145, 137897), (365, 54781), (1889, 10585), (2117, 9445)]